点火开关ON发动机不启动
KOEO KEY — ONEngine — OFF
点火开关ON发动机运转
KOER KEY — ONEngine — Running
点火开关连接器
ignition switch connection
四脚点火开关
four terminal ignition switch
五端线点火开关
five terminal ignition switch
残余换流电压和开关损耗的降低
residual commutation voltage and reduced switching losses